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A blood warmer is to be used during the transfusion of blood to a patient. This device is to heat blood taken from the blood bank at 10°C to 37°C at a flow rate of 200 ml/min. The blood passes through tubing of length 2 m, with a rectangular cross section 6.4 mm×1.6 mm. At what rate must heat be added to the blood to accomplish the required temperature increase? If the fluid originates from a large tank with nearly zero velocity and flows vertically downward for its 2-m length, estimate the magnitudes of kinetic and potential energy changes. Assume the blood's properties are similar to those of water
The mean and the standard deviation for N.
Calculate all the gear ratios. if 22.1 kw is transmitted in 1st gear at an engine speed of 3000 rpm, Evaluate the required fixing torque on the annulus
1kg of water that is initially at 90 degree celsius with a quality of 10 percent occupies a linear spring-loaded
Estimate the fugacity for each species in the following gases at 290 K and 800 bar: (a) Pure oxygen; (b) Pure nitrogen; (c) Oxygen and nitrogen in a 30% mol O2 and 70% mol N2 mixture using the Lewis-Randall rule, and (d) Oxygen and nitrogen mixture i..
air enters an insulated compressor operating at steady state at 1.05 bar 23 degrees c with a mass flow rate of 1.8 kgs
r-134a at 20 psia and 40of is compressed slowly adiabatically and without friction to a final pressure of 200 psia.
A thick cylinder has an inside diameter of 60 mm and an outside diameter of 100 mm. It is pressurised internally until the outer layer (surface) has a hoop stress of 300 MPa. Calculate the pressure on the inside surface
a solid shaft of 30mm diameter is to be used determine the maximum torque that can be applied without exceeding an
The coefficient of static friction is 0.25 between the threads and also between the tongue and the body. Neglecting bearing friction between the screw and the movable head, determine the couple that must be applied to the handle in order to produc..
Suppose that your business is operating at four-and-a-half sigma quality level. if projects have an average improvement rate of 50% annually, how many years will take to achieve six-sigma quality?
A 255V shunt motor has an armature resistance of 0.245 Ohm and a field resistance of 124.9 Ohm. At no load (1200 r/min), the motor draws a current of 2.041 A. At full load, the motor draws 54 A. What's the motor's full load speed (in r/min)?
mercury is often used in barometers. this is because tje vapor pressure of mercury is low enough to be ignored and
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